Weighing on the Move A NEW type of weighbridge equipment
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'A has been developed in the U.S.A. by 7airbanks Morse and Co., whereby a 'chicle can be weighed without having o come to a standstill on the bridge. nitially designed for dealing with railway /nuns, the system would appear to be uitable for road vehicles also, and one ariation of the machine can weigh chicks travelling at 10 to 12 m.p.h., lthough the normal weighing speed is to 4 m.p.h.
The equipment is known as the Model p, and bonded strain-gauge load cells are mployed to overcome vibration difficules, such cells having a high rate of !sponse and therefore being quick to ick up vibration frequencies. Mechanical !ver systems can be employed, in which Ise leverand cell-damping assemblies re needed to resist vibration in the load:ceiving elements, and damping techiques are applied when electronic ampliers are used also. Weighing time can ! as little as 2.5 seconds.
The Model Q is described as a servo ull-balance balancing system, and the riginal signals come from the strain gauge load cells. The servo mechanism detects a phase, and as a result drives a load-balance potentiometer to a nullbalance condition, at which point the weight is automatically recorded. The swift response of the machine is achieved by high-speed range-stepping switches which enlarge the primary chart.
Exclusive of the bridge itself, the Model Q costs between £2,850 and £3,550 in the U.S.A., and the installations meet the requirements of the American Association of Railroads. It is stated that the system is being studied by British Railways.
JUBILEE YEAR
ALTHOUGH in two years' time Victor Greenhous (Wrexham). Ltd., will be celebrating-their Golden Jubilee, this year the Wrexham branch completes 25 years' service to the town.
The Greenhous organization, main Vauxhall and Bedford distributors, took over the Triplex Motor Company in Wrexham in 1936. In those days there was a staff of nine—today it has expanded to 110.